The experts onMarried at First Sightspend months making the perfect pairs.

When it doesn’t work out, it can be heartbreaking to more than just the couple.

“I have cried on decision days,” expert Dr. Viviana Coles exclusively toldThe List.

Dr. Viviana Coles on Married at First Sight

The experts are always on call when the show’s couples need them.

They’ve been there to talk them through some of their biggest problems.

“Tone is such a big deal in communication, the facial and body expressions,” she explained.

Brett and Olivia from season 11 of Married at First Sight

“I definitely was devastated by the outcome of that one,” she admitted.

So who was it?

On decision day, Brett and Olivia decided to call it quits.

“That was really a tough one for me,” Dr. Viviana Coles told us.

Over the course of eight weeks, we all watched as this couple’s marriage slowly fell apart.

“But they didn’t.”

Unfortunately, as all fans of the show know, Brett and Olivia ultimately decided to get a divorce.

For Dr. Coles, it was the most devastating one she’s seen.